Bletchley Park Personnel Master List Notes
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Georgetown University in Partial Fulfillment of the Requirements for the Degree of Master of Arts in Security Studies
THE BATTLE FOR INTELLIGENCE: HOW A NEW UNDERSTANDING OF INTELLIGENCE ILLUMINATES VICTORY AND DEFEAT IN WORLD WAR II A Thesis submitted to the Faculty of the Graduate School of Arts and Sciences of Georgetown University in partial fulfillment of the requirements for the degree of Master of Arts in Security Studies By Edward J. Piotrowicz III, B.A. Washington, DC April 15, 2011 Copyright 2011 by Edward J. Piotrowicz III All Rights Reserved ii THE BATTLE FOR INTELLIGENCE: HOW A NEW UNDERSTANDING OF INTELLIGENCE ILLUMINATES VICTORY AND DEFEAT IN WORLD WAR II Edward J. Piotrowicz III, B.A. Thesis Advisor: Jennifer E. Sims, PhD. ABSTRACT Does intelligence make a difference in war? Two World War II battles provide testing grounds for answering this question. Allied intelligence predicted enemy attacks at both Midway and Crete with uncanny accuracy, but the first battle ended in an Allied victory, while the second finished with crushing defeat. A new theory of intelligence called “Decision Advantage,”a illuminates how the success of intelligence helped facilitate victory at Midway and how its dysfunction contributed to the defeat at Crete. This view stands in contrast to that of some military and intelligence scholars who argue that intelligence has little impact on battle. This paper uses the battles of Midway and Crete to test the power of Sims‟s theory of intelligence. By the theory‟s standards, intelligence in the case of victory outperformed intelligence in the case of defeat, suggesting these cases uphold the explanatory power of the theory. Further research, however, could enhance the theory‟s prescriptive power. -
SPYCATCHER by PETER WRIGHT with Paul Greengrass WILLIAM
SPYCATCHER by PETER WRIGHT with Paul Greengrass WILLIAM HEINEMANN: AUSTRALIA First published in 1987 by HEINEMANN PUBLISHERS AUSTRALIA (A division of Octopus Publishing Group/Australia Pty Ltd) 85 Abinger Street, Richmond, Victoria, 3121. Copyright (c) 1987 by Peter Wright ISBN 0-85561-166-9 All Rights Reserved. No part of this publication may be reproduced, stored in or introduced into a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording or otherwise) without the prior written permission of the publisher. TO MY WIFE LOIS Prologue For years I had wondered what the last day would be like. In January 1976 after two decades in the top echelons of the British Security Service, MI5, it was time to rejoin the real world. I emerged for the final time from Euston Road tube station. The winter sun shone brightly as I made my way down Gower Street toward Trafalgar Square. Fifty yards on I turned into the unmarked entrance to an anonymous office block. Tucked between an art college and a hospital stood the unlikely headquarters of British Counterespionage. I showed my pass to the policeman standing discreetly in the reception alcove and took one of the specially programmed lifts which carry senior officers to the sixth-floor inner sanctum. I walked silently down the corridor to my room next to the Director-General's suite. The offices were quiet. Far below I could hear the rumble of tube trains carrying commuters to the West End. I unlocked my door. In front of me stood the essential tools of the intelligence officer’s trade - a desk, two telephones, one scrambled for outside calls, and to one side a large green metal safe with an oversized combination lock on the front. -
Polish Mathematicians Finding Patterns in Enigma Messages
Fall 2006 Chris Christensen MAT/CSC 483 Machine Ciphers Polyalphabetic ciphers are good ways to destroy the usefulness of frequency analysis. Implementation can be a problem, however. The key to a polyalphabetic cipher specifies the order of the ciphers that will be used during encryption. Ideally there would be as many ciphers as there are letters in the plaintext message and the ordering of the ciphers would be random – an one-time pad. More commonly, some rotation among a small number of ciphers is prescribed. But, rotating among a small number of ciphers leads to a period, which a cryptanalyst can exploit. Rotating among a “large” number of ciphers might work, but that is hard to do by hand – there is a high probability of encryption errors. Maybe, a machine. During World War II, all the Allied and Axis countries used machine ciphers. The United States had SIGABA, Britain had TypeX, Japan had “Purple,” and Germany (and Italy) had Enigma. SIGABA http://en.wikipedia.org/wiki/SIGABA 1 A TypeX machine at Bletchley Park. 2 From the 1920s until the 1970s, cryptology was dominated by machine ciphers. What the machine ciphers typically did was provide a mechanical way to rotate among a large number of ciphers. The rotation was not random, but the large number of ciphers that were available could prevent depth from occurring within messages and (if the machines were used properly) among messages. We will examine Enigma, which was broken by Polish mathematicians in the 1930s and by the British during World War II. The Japanese Purple machine, which was used to transmit diplomatic messages, was broken by William Friedman’s cryptanalysts. -
Idle Motion's That Is All You Need to Know Education Pack
Idle Motion’s That is All You Need to Know Education Pack Idle Motion create highly visual theatre that places human stories at the heart of their work. Integrating creative and playful stagecraft with innovative video projection and beautiful physicality, their productions are humorous, evocative and sensitive pieces of theatre which leave a lasting impression on their audiences. From small beginnings, having met at school, they have grown rapidly as a company over the last six years, producing five shows that have toured extensively both nationally and internationally to critical acclaim. Collaborative relationships are at the centre of all that they do and they are proud to be an Associate Company of the New Diorama Theatre and the Oxford Playhouse. Idle Motion are a young company with big ideas and a huge passion for creating exciting, beautiful new work. That is All You Need to Know ‘That Is All You Need To Know’ is Idle Motion’s fifth show. We initially wanted to make a show based on the life of Alan Turing after we were told about him whilst researching chaos theory for our previous show ‘The Seagull Effect’. However once we started to research the incredible work he did during the Second World War at Bletchley Park and visited the site itself we soon realised that Bletchley Park was full of astounding stories and people. What stood out for us as most remarkable was that the thousands of people who worked there kept it all a secret throughout the war and for most of their lives. This was a story we wanted to tell. -
The First Americans the 1941 US Codebreaking Mission to Bletchley Park
United States Cryptologic History The First Americans The 1941 US Codebreaking Mission to Bletchley Park Special series | Volume 12 | 2016 Center for Cryptologic History David J. Sherman is Associate Director for Policy and Records at the National Security Agency. A graduate of Duke University, he holds a doctorate in Slavic Studies from Cornell University, where he taught for three years. He also is a graduate of the CAPSTONE General/Flag Officer Course at the National Defense University, the Intelligence Community Senior Leadership Program, and the Alexander S. Pushkin Institute of the Russian Language in Moscow. He has served as Associate Dean for Academic Programs at the National War College and while there taught courses on strategy, inter- national relations, and intelligence. Among his other government assignments include ones as NSA’s representative to the Office of the Secretary of Defense, as Director for Intelligence Programs at the National Security Council, and on the staff of the National Economic Council. This publication presents a historical perspective for informational and educational purposes, is the result of independent research, and does not necessarily reflect a position of NSA/CSS or any other US government entity. This publication is distributed free by the National Security Agency. If you would like additional copies, please email [email protected] or write to: Center for Cryptologic History National Security Agency 9800 Savage Road, Suite 6886 Fort George G. Meade, MD 20755 Cover: (Top) Navy Department building, with Washington Monument in center distance, 1918 or 1919; (bottom) Bletchley Park mansion, headquarters of UK codebreaking, 1939 UNITED STATES CRYPTOLOGIC HISTORY The First Americans The 1941 US Codebreaking Mission to Bletchley Park David Sherman National Security Agency Center for Cryptologic History 2016 Second Printing Contents Foreword ................................................................................ -
Code Breaking at Bletchley Park
Middle School Scholars’ CONTENTS Newsletter A Short History of Bletchley Park by Alex Lent Term 2020 Mapplebeck… p2-3 Alan Turing: A Profile by Sam Ramsey… Code Breaking at p4-6 Bletchley Park’s Role in World War II by Bletchley Park Harry Martin… p6-8 Review: Bletchley Park Museum by Joseph Conway… p9-10 The Women of Bletchley Park by Sammy Jarvis… p10-12 Bill Tutte: The Unsung Codebreaker by Archie Leishman… p12-14 A Very Short Introduction to Bletchley Park by Sam Corbett… p15-16 The Impact of Bletchley Park on Today’s World by Toby Pinnington… p17-18 Introduction A Beginner’s Guide to the Bombe by Luca “A gifted and distinguished boy, whose future Zurek… p19-21 career we shall watch with much interest.” This was the parting remark of Alan Turing’s Headmaster in his last school report. Little The German Equivalent of Bletchley could he have known what Turing would go on Park by Rupert Matthews… 21-22 to achieve alongside the other talented codebreakers of World War II at Bletchley Park. Covering Up Bletchley Park: Operation Our trip with the third year academic scholars Boniface by Philip Kimber… p23-25 this term explored the central role this site near Milton Keynes played in winning a war. 1 intercept stations. During the war, Bletchley A Short History of Bletchley Park Park had many cover names, which included by Alex Mapplebeck “B.P.”, “Station X” and the “Government Communications Headquarters”. The first mention of Bletchley Park in records is in the Domesday Book, where it is part of the Manor of Eaton. -
June 1St Heath Robinson Operational
similar vein to Rube Goldberg in The Mark 2 supported the US). conditional branching, just as Charles Babbage’s analytical June 1st The machine consisted of a engine had done [Dec 23], frame (called the bedspread) although there’s no evidence to which supported two long suggest that the Mark 2's Heath Robinson teleprinter paper tapes on a designer, Tommy Flowers [Dec network of reels, and two other 22], was aware of Babbage's Operational racks holding counters and logic design. June 1, 1943 circuits. Ten Colossi were operating by One tape could hold 2,000 The "Heath Robinson" was a the end of the war and an characters of cipher text, while code-breaking machine used at eleventh had been the other stored patterns that Bletchley Park [Aug 15] to help commissioned. They allowed the the codebreakers believed might decrypt the Lorenz (aka Tunny) Allies to extract a vast amount of represent the Lorenz cipher. intelligence from intercepted encryption. The second tape had radio messages sent from Lorenz was a much more to be precisely one character German High Command advanced cipher than the better longer than the first, and throughout Europe. known Enigma [Feb 23]. For keeping the tapes synchronized example, Enigma machines was a major challenge. A functioning reconstruction of a initially used just three rotors Mark 2 was completed in 2008 Max Newman [Feb 7] was during their encryption process, by Tony Sale and volunteers; it's while a Lorenz device employed responsible for the Robinson's on display at The National functional specification, but twelve. -
World War II at Sea This Page Intentionally Left Blank World War II at Sea
World War II at Sea This page intentionally left blank World War II at Sea AN ENCYCLOPEDIA Volume I: A–K Dr. Spencer C. Tucker Editor Dr. Paul G. Pierpaoli Jr. Associate Editor Dr. Eric W. Osborne Assistant Editor Vincent P. O’Hara Assistant Editor Copyright 2012 by ABC-CLIO, LLC All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, except for the inclusion of brief quotations in a review, without prior permission in writing from the publisher. Library of Congress Cataloging-in-Publication Data World War II at sea : an encyclopedia / Spencer C. Tucker. p. cm. Includes bibliographical references and index. ISBN 978-1-59884-457-3 (hardcopy : alk. paper) — ISBN 978-1-59884-458-0 (ebook) 1. World War, 1939–1945—Naval operations— Encyclopedias. I. Tucker, Spencer, 1937– II. Title: World War Two at sea. D770.W66 2011 940.54'503—dc23 2011042142 ISBN: 978-1-59884-457-3 EISBN: 978-1-59884-458-0 15 14 13 12 11 1 2 3 4 5 This book is also available on the World Wide Web as an eBook. Visit www.abc-clio.com for details. ABC-CLIO, LLC 130 Cremona Drive, P.O. Box 1911 Santa Barbara, California 93116-1911 This book is printed on acid-free paper Manufactured in the United States of America To Malcolm “Kip” Muir Jr., scholar, gifted teacher, and friend. This page intentionally left blank Contents About the Editor ix Editorial Advisory Board xi List of Entries xiii Preface xxiii Overview xxv Entries A–Z 1 Chronology of Principal Events of World War II at Sea 823 Glossary of World War II Naval Terms 831 Bibliography 839 List of Editors and Contributors 865 Categorical Index 877 Index 889 vii This page intentionally left blank About the Editor Spencer C. -
MTAT.07.006 Research Seminar in Cryptography the Enigma Cipher Machine
MTAT.07.006 Research Seminar in Cryptography The Enigma Cipher Machine Kadri Hendla November 28, 2005 Abstract 3.1 The Rotors The aim of this survey is to give a brief overview on Rotors are the most important part of an Enigma Enigma cipher machine and its cryptanalysis before machine. A rotor is a disc about 10 cm in diameter and during the Second World War. The survey is and it’s usually made of hard rubber or bakelite. mostly based on the articles [1] and [7] on Enigma On one face are 26 brass pins forming a circle; on from Wikipedia. the other side are corresponding electrical contacts. Each pin represents a letter in the alphabet. Inside the rotor are 26 wires connecting the pins on one 1 Introduction side to the contacts on the other side; the wiring is different for each rotor. The rotor also has a finger Enigma is a portable cipher machine, famous for wheel for turning the rotor by hand and an alpha- the role it played in World War II. The breaking of bet ring, so the operator can see the rotor position. Enigma codes is considered to be one of the reasons In the earlier versions of Enigma the alphabet ring for the Allies victory. was fixed; the later versions allowed adjusting the alphabet ring relative to the core wiring. This po- sition of the ring is known as the ring settings. The 2 History of Enigma rotors are placed in the machine side by side, which causes the pins and contacts of the neighbouring In 1918 German engineer Arthur Scherbius applied rotors to form an electrical connection. -
Colossus – NZZ Artikel – Dominik Landwehr – März 2007 1/17
Colossus – NZZ Artikel – Dominik Landwehr – März 2007 1/17 Colossus: 15 000 Röhren knacken den Nazi-Code Bletchley Park rekonstruiert einen frühen Computer Mit einem beispiellosen Aufwand gelang es den Briten im Zweiten Weltkrieg die deutsche Chiffriermaschine Enigma zu knacken. Weniger bekannt ist die Tatsache, dass sie dank einer Maschine namens 'Colossus' auch einen weit komplexeren deutschen Fernschreiber-Code brechen konnten. 'Colossus' nimmt in der Ahnengalerie der Computergeschichte einen Ehrenplatz ein und ist seit kurzem in Bletchley Park als funktionsfähiger Nachbau zu besichtigen. Von Dominik Landwehr 14 Jahre akribischer Arbeit stecken hinter dem Projekt der Colossus-Rekonstruktion. Damit konnte der britische Ingenieur und Nachrichtendienst-Spezialist Tony Sale eine seiner Visionen wahr machen.(Foto Dominik Landwehr) Colossus – NZZ Artikel – Dominik Landwehr – März 2007 2/17 Gewiss, es gibt grössere Museen zur Technik und besonders der Computergeschichte als jenes von Bletchley Park: Zu nennen wäre das Science Museum in London, das Deutsche Museum in München, das Heinz Nixdorf MuseumsForum in Paderborn oder das Computer History Museum im kalifornischen Mountain View. Bletchley Park – eine Zugstunde nördlich von London genau in der Mitte zwischen Oxford und Cambridge gelegen – ist dennoch etwas einzigartiges und das hängt vor allem mit seinem ’genius loci’ zusammen. Die goldenen Eier von Bletchley Park Im Rahmen einer geheimen Operation wurde hier im Zweiten Weltkrieg ein wesentlicher Teil des Nachrichtenverkehrs von Hitler Deutschland entschlüsselt. Die wichtigsten hier dekodierten Nachrichten wurden unter dem Aktenvermerk 'Ultra' nur höchsten Entscheidungsträgern zugänglich gemacht. Die Entschlüsselung geschah gewissermassen auf industrieller Basis: Bis zu zehntausend Menschen – die meisten davon Frauen – arbeiteten in Bletchley Park rund um die Uhr. -
Breaking the Codes: Jewish Personnel at Bletchley Park
Jewish Historical Studies, volume 40, 2005 Breaking the codes: Jewish personnel at Bletchley Park MARTIN SUGARMAN If students of the Second World War were to be asked which single organization contributed most to the defeat of the Axis forces between 1939 and 1945, many might agree that it was the code breakers at Bletchley Park Government Code and Cipher School (BP GC&CS), forerunner of Government Communications Headquarters (GCHQ).1 On the basis of enemy messages decoded at BP, strategic decisions were made by Allied leaders which significantly altered the course of the war and saved count less lives. Established in 1938 as a branch of the Foreign Office, and leaning on previous experience, the part played by the staff at BP was revealed in 1974 in F. W. Winterbotham's book The Ultra Secret. The intelligence obtained from the codebreaking was called Ultra, and such information was passed only to the most senior Allied commanders in the field, in case the Germans realized their codes had been broken and changed them. Since then a small library of publications has appeared on the subject,2 as well as two significant films3 and several television documentaries. GC&CS was jokingly known to the staff as the 'Golf Club and Chess - - Society' a good cover name and had originally been founded at the end of the First World War. BP was known as Station X for a short time (the term was later used to describe any listening station, wherever located). As radio signals would have revealed the codebreaking school's location and made it a target for bombers, the radio station was moved away from BP soon after the outbreak of war. -
Gendering Decryption - Decrypting Gender
1 Gendering decryption - decrypting gender The gender discourse of labour at Bletchley Park 1939-1945 Photograph taken from Smith 2011. Spring 2013 MA thesis (30 hp) Author: Annie Burman Supervisor: Mikael Byström Seminar leader: Torkel Jansson Date of seminar: 4 June 2013 2 Abstract Ever since the British efforts to break Axis codes and ciphers during the Second World War were declassified in the 1970s, the subject of Government Code and Cipher School, the organisation responsible, Bletchley Park, its wartime headquarters, and the impact of the intelligence on the war has fascinated both historians and the general public. However, little attention has been paid to Bletchley Park as a war station where three-quarters of the personnel was female. The purpose of this thesis is to explore the gender discourse of labour at Bletchley Park and how it relates to the wider context of wartime Britain. This is done through the theoretical concepts of gendering (the assignation of a gender to a job, task or object), horizontal gender segregation (the custom of assigning men and women different jobs) and vertical gender segregation (the state where men hold more prestigious positions in the hierarchy than women). The primary sources are interviews, letters and memoirs by female veterans of Bletchley Park, kept in Bletchley Park Trust Archive and the Imperial War Museum’s collections, and printed accounts, in total two monographs and five articles. Surviving official documents from Bletchley Park, now kept in the National Archives, are also utilised. Using accounts created by female veterans themselves as the main source material allows for women’s perspectives to be acknowledged and examined.